[copilot-session-insights] Daily Copilot Agent Session Analysis — 2026-09-20

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🤖 Copilot Agent Session Analysis — 2026-09-20

Executive Summary

• Sessions Analyzed: 50 (workflow-run/CI-gate metadata; no conversation transcripts available — see Notable Observations)
• Analysis Period: 2026-09-19T01:25:10Z → 2026-09-20T06:08:50Z (~29h 44m — widest recorded window to date, previous max was 8.25h on 09-18)
• Completion Rate: 30.0% (15/50)
• Average Duration (proxy): 75.83 min raw / ≈40.4 min artifact-adjusted (see below)
• Experimental Strategy: push_event_reattribution (roll=29 < 30 threshold)

📈 Session Trends Analysis

Completion Patterns

Completion rate returned to roughly the 29-day mean (30.0% vs 31.4% mean) after 09-19's dip, with today's mix of 15 successes / 35 non-completions following the same volatile week-over-week pattern seen since early September (range 4–78%). The "not completed" bucket remains dominated by the standing Squad/Agentic Commands approval-gate backlog rather than new failure modes.

Duration & Efficiency

Today's raw mean duration proxy spikes to the highest point on the chart, but this is fully explained by 3 sessions whose updated_at was only touched when an unrelated PR merged 10+ hours later (merge-invalidation artifact, not real execution time); the artifact-adjusted mean (~40.4 min) sits within the normal recent range. Median duration continues to track well below the mean, reflecting a right-skewed distribution driven by a handful of long-pending gates.

Key Metrics

Metric	Value	Trend
Total Sessions	50	→
Successful Completions	15 (30.0%)	↑ (+2pts vs 09-19's 28%)
Failed	14 (28.0%)	↓ (vs 09-19's 2)
Action Required (blocked/stuck)	20 (40.0%)	↓ (vs 09-19's 34)
Cancelled	1 (2.0%)	→
Average Duration (raw, all 50)	75.83 min	↑ (artifact-inflated)
Median Duration (raw, all 50)	4.76 min	↓
Orphaned-Branch Rate	0.0%	→ (29th consecutive 0% day)

Note: "Failed" + "Action Required" replace the single failure-rate figure used in some earlier reports, since this run's 20 action_required entries are dominated by the standing Squad/Agentic Commands approval-gate pattern rather than genuine execution failures (see Failure Signals).

Success Factors ✅

1. True-agentic runs remain highly reliable: The 8 true-agentic-labeled runs ("Addressing comment on PR Embed reviewed threat-detect digests in compiled workflows #61857" ×5, "Addressing comment on PR [WIP] Fix failing GitHub Actions job update #61938" ×2, "Running Copilot cloud agent" ×1) succeeded 7/8 (87.5%), with the only non-success being a cancellation, not a failure.

   • Example: all 5 "Addressing comment on PR Embed reviewed threat-detect digests in compiled workflows #61857" invocations across the ~24h window completed successfully, each followed by a successful "Code scanning AI findings" pass.

2. Provenance mix shifted toward true-agentic work: Of today's 15 successes, 7 (46.7%) are true-agentic and 8 (53.3%) are CI-gate/review-bot successes — the lowest bot-driven share on record, undercutting the prior low of 72.4% (09-18). Historically this ratio has run 75–100% bot-driven.

3. Fast recovery on copilot/fix-update-job-failure: Despite absorbing a 9-failure merge-invalidation cascade at 12:42:30Z (see Failure Signals), the branch still landed 3 more true-agentic successes afterward (13:25:24Z, 13:34:52Z push, PR [WIP] Fix failing GitHub Actions job update #61938 merged 13:52:01Z) — the cascade did not block forward progress.

4. Push-level success is far higher than raw session-level success suggests: See Experimental Analysis below — 66.7% of inferred push events contained at least one success, vs. the 30.0% raw session rate.

Failure Signals ⚠️

1. Perpetually-blocked approval gates: Squad (6/6 action_required), Agentic Commands (6 action_required + 1 cascade-failure /7), and Squad Implement Worker (2/2 action_required) together account for 15/50 (30%) of all non-completions — 0% resolve without manual intervention, continuing the long-standing "never auto-resolves" pattern (branch_level_stuck_gate in the pattern DB).

2. Merge-invalidation cascade (3-run): PR [WIP] Fix failing GitHub Actions job update #61938 (copilot/fix-update-job-failure) was human-merged at 2026-09-19T13:52:01Z. Content Moderation, Agentic Commands, and AI Moderator — all pending since 03:21:25Z — flipped to failure at 13:52:02Z, exactly 1 second later. Textbook merge_invalidation_cascade: in-flight gates invalidated by the merge, not genuine execution failures.

3. Second, smaller merge-invalidation event: PR Avoid redownloading cached runs during logs audit #61871 (copilot/ensure-logs-command-caching) merged at 03:15:30Z; Squad Implement Worker fired action_required 6 seconds later (03:15:36Z) — same mechanic, single-run instance, already noted in yesterday's (09-19) analysis since this run's 50-entry window overlaps back into that period.

4. copilot/ensure-logs-command-caching fully unresolved: all 7 sessions on this branch are action_required (0% success) — entirely Squad/Agentic Commands/Squad Implement Worker gate noise, no true-agentic run visible in this window.

5. A 9-failure burst with one recovery: copilot/fix-update-job-failure at 12:42:30Z shows 9 failures (Matt Pocock Skills Reviewer, Impeccable Skills Reviewer, PR Code Quality Reviewer, PR Data Prefetch, Test Quality Sentinel, CGO, Ponytail Reviewer, CWI, Design Decision Gate) clustered with 1 success (Running Copilot Code Review) in the same ~8-minute push window — reviewer/quality-gate workflows appear more failure-prone than the core CI/CD gates in this burst.

Prompt Quality Analysis 📝

Per-Prompt Breakdown

No conversation transcripts were available this run (0 of 50 sessions had a -conversation.txt log — see Notable Observations), so turn-by-turn prompt text cannot be assessed. As a metadata-only proxy, workflow/session names are the only available signal:

• True-agentic session names ("Addressing comment on PR #NNNN", "Running Copilot cloud agent") correlate with the highest success rate (87.5%) observed today — consistent with prior days.
• Review/quality-gate bot names (Matt Pocock Skills Reviewer, Impeccable Skills Reviewer, PR Code Quality Reviewer, Test Quality Sentinel, Ponytail Reviewer, Design Decision Gate) clustered entirely on the failure side of today's 9-failure burst — but this is a single burst on one branch/push and shouldn't be over-generalized without transcript-level evidence.

No example prompt text can be responsibly included without transcript access.

Orphaned Branch Escalation Alerts 🚨

Branches with ≥5 simultaneous gate firings and no Copilot agent assigned for >2 hours.

Summary

• Orphaned Branches Today: 0 out of 3 active branches (0.0%)
• Historical Baseline: 0.0% orphaned rate (30-day mean over 28 recorded days)
• Status: NORMAL

Escalation Candidate Details

Escalation Candidates

✅ No orphaned branches exceed the escalation threshold today.

Only 1 in-progress workflow run existed repo-wide in the last 6 hours (this analysis workflow itself, on main); 11 open PRs were checked, of which only copilot/embed-threat-detect-digests (#61857) has an active Copilot assignment, and it currently has 0 concurrent gate firings.

CI Waste Estimate

• Orphaned gate-hours today: 0 (no candidates)
• Recoverable capacity: N/A — 29th consecutive 0.0% orphan day, no action needed

Notable Observations

Loop Detection and Session Diagnostics

Loop Detection

• No turn-level loop detection is possible without conversation transcripts. As a coarse proxy, repeated identical-workflow re-firings within a single push (e.g., the 9-failure burst on copilot/fix-update-job-failure) are the closest observable signal, and none of today's bursts repeated beyond a single retry cycle.

Tool Usage

• Not observable — 0/50 sessions have conversation logs (see below).

Duration Diagnostics

• Raw (all 50, incl. zero-duration pending entries): mean 75.83 min, median 4.76 min.
• 3 entries are confirmed merge-invalidation artifacts (Content Moderation / Agentic Commands / AI Moderator, all exactly 630.6 min, updated_at = PR [WIP] Fix failing GitHub Actions job update #61938 merge time + 1s) — these reflect gates sitting pending from creation until the merge flipped them, not real execution time.
• Excluding those 3: mean 40.42 min (47 entries), and among the 27 non-zero entries: mean 70.36 min, median 17.15 min, max 553.2 min (2 CWI/CGO entries with long pending gaps, cause not independently verified — same pattern flagged as "genuine but unverified" on 09-17).
• The 29h44m analysis window is the widest of the recorded series (previous max 8.25h, 09-18), driven by lower repo-wide CI/PR volume over this period letting the fixed 50-run cap reach further back in time.

Context Issues

• Not observable via metadata alone — 0 sessions had transcript access.

Conversation Transcript Availability

• 0 of 50 sessions had a -conversation.txt log in /tmp/gh-aw/agent/session-data/logs/ — the 29th consecutive recorded day with empty transcript data (conversation_logs_empty pattern). All analysis in this report is derived from GitHub Actions run/PR metadata (timestamps, conclusions, branch/name), not turn-by-turn agent behavior.

Experimental Analysis

This run included experimental strategy: push_event_reattribution

Rationale: Raw session-level completion rate conflates one true-agentic action with the variable number of satellite CI-gate/review-bot runs it triggers (observed range: 1–10 per push today). This experiment re-derives the natural unit of analysis — the push event — by clustering same-branch sessions whose created_at falls within 15 seconds of the previous entry, then recomputing completion at that level.

Method: Sorted all 50 sessions by branch + created_at, greedily grouped consecutive same-branch entries within a 15s gap into a cluster, and labeled a cluster "successful" if it contained ≥1 success conclusion.

Findings:

• 50 raw sessions collapsed into 18 inferred push-event clusters (mean cluster size 2.78, range 1–10; e.g. the 12:42:30Z cluster on copilot/fix-update-job-failure bundled 9 failures + 1 success into a single push).
• Push-level completion rate: 12/18 = 66.7% — more than double the raw session-level rate of 30.0%.
• 2 of the 6 "unsuccessful" clusters (the copilot/ensure-logs-command-caching 6-run and 1-run clusters) contain only Squad/Agentic Commands gate noise with no true-agentic entry at all — this could reflect a genuinely gate-only push, or truncation at the edge of the fixed 50-run window (an earlier true-agentic run for that push may have rolled off the list). This caveat limits confidence in the push-level number as an exact figure, though the direction (raw rate understates real success) is robust.

Effectiveness: High — the >2x gap between raw and push-level completion rates is large enough to change how the headline metric should be read, and the mechanism (gate fan-out per push) is well-understood and independently verified via the two merge-cascade events above.

Recommendation: Promote — track push-level completion rate as a secondary headline metric in future reports alongside the raw session rate, explicitly caveating window-cap truncation risk at cluster edges.

Actionable Recommendations

For Users Writing Task Descriptions

1. No transcript-based prompt guidance is possible this run: with 0/50 sessions carrying conversation logs, we cannot yet derive concrete prompt-wording recommendations from this workflow. This has now held for 29 consecutive recorded days — worth flagging to whoever owns the copilot-session-data-fetch module (see System Improvements below).

For System Improvements

1. Investigate the empty transcript pipeline: 0/50 sessions have had conversation logs for at least 29 consecutive days. If this data source is expected to populate, it appears structurally broken; if it's expected to stay metadata-only (e.g., because these 50 runs are CI-gate check-runs rather than agent job runs), the workflow's own documentation/prompt should be updated to stop implying turn-by-turn analysis is in scope.

   • Potential impact: High — this is the single biggest capability gap blocking real behavioral/prompt-quality analysis.

2. Reduce approval-gate friction for Squad/Agentic Commands/Squad Implement Worker: these three together account for 30% of all non-completions today (and every prior recorded day), 0% auto-resolving. If they require manual approval by design, consider auto-approving for trusted branches/authors to stop them from dominating the "action_required" bucket and distorting completion-rate readings.

   • Potential impact: Medium — would materially clean up the headline completion-rate metric without any behavior change.

3. Consider push-level completion as a tracked metric: given today's experimental finding (66.7% push-level vs 30.0% raw), the raw session completion rate likely understates real agent effectiveness whenever a push fans out into many satellite gates.

   • Potential impact: Medium — improves trend readability without new instrumentation (derivable from existing session-list data).

For Tool Development

1. Conversation-transcript fetch for actual agent runs: needed to unblock loop detection, tool-usage analysis, and prompt-quality scoring — requested implicitly by this workflow's own template for 29+ consecutive days with 0 sessions delivered.
   • Frequency of need: 50 sessions/day, every day so far.
   • Use case: turn-by-turn model/token/tool-call analysis as originally specified in this workflow's Phase 1.

Historical Trends and Statistical Summary

Trends Over Time

• Completion rate trend: 30.0% today, +2pts vs 09-19 (28.0%), essentially at the 29-day mean (31.4%, range 4–78%) — a return to baseline after 09-18's 2nd-highest reading (58%) and 09-19's dip.
• Average duration trend: Raw proxy jumped to 75.83 min (highest on record) purely due to the 3 merge-cascade-inflated entries; artifact-adjusted (~40.4 min) is in line with recent days' range (6.8–40.0 min).
• Orphan rate: 0.0% for the 29th consecutive recorded day — consistently NORMAL, no system risk from unattended branches.
• Provenance mix: today's 46.7% true-agentic share of successes is the highest (least bot-dominated) on record, beating the prior extreme of 27.6% (09-18).

Statistical Summary

Total Sessions Analyzed:     50
Successful Completions:      15 (30.0%)
Failed Sessions:              14 (28.0%)
Action Required (blocked):    20 (40.0%)
Cancelled:                     1 (2.0%)

Average Session Duration (raw, all 50):        75.83 min
Median Session Duration (raw, all 50):          4.76 min
Average Session Duration (artifact-adjusted):   40.42 min
Median Duration (27 nonzero, adjusted):         17.15 min
Longest Session (adjusted, unverified outlier): 553.2 min
Shortest Nonzero Session:                        3.48 min

Loop Detection:             not observable (0 transcripts)
Context Issues:             not observable (0 transcripts)
Tool Failures:               not observable (0 transcripts)

True-agentic Sessions:        8 (7 success, 1 cancelled — 87.5% success)
CI-gate/Review-bot Sessions:  42 (8 success, 14 failure, 20 action_required)

Inferred Push Events:         18 (mean cluster size 2.78, range 1-10)
Push-level Completion Rate:   66.7% (12/18)

Next Steps

• Review recommendations with team
• Investigate why conversation transcripts have been empty for 29+ consecutive days
• Evaluate auto-approval for Squad/Agentic Commands/Squad Implement Worker gates on trusted branches
• Consider adding push-level completion rate as a tracked secondary metric
• Schedule follow-up analysis tomorrow (2026-09-21)

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Analysis generated automatically on 2026-09-20
Run ID: 35495268027
Workflow: Copilot Session Insights

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Generated by 📊 Copilot Session Insights · claude · agent · 229.9 AIC · ⌖ 11.4 AIC · ⊞ 18.7K · ◷

• expires on Sep 20, 2026, 11:18 PM UTC-08:00

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This discussion was automatically closed because it expired on 2026-09-21T07:18:23.537Z.

Closed by Workflow